Personalized I Heart Gym Infant Romper. I heart gym text with an edgy heart and the word gym wearing sneakers is a fun design for gym and fitness lovers on birthdays, holidays and back to school. Meet your new favorite outfit! Keep dressing simple with this one piece, lap shoulder t-romper. Super soft and perfect for baby's sensitive skin. 5.5 oz. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40; Heather is 90/10 combed ringspun cotton/polyester)